Three archers each fire four arrows at a target. Joe's four arrows hit at points 10 cm above, 10 cm below, 10 em to the left, and 10 cm to the right of the center of the target. All four of Moe's arrows hit within 1 cm of a point 20 cm from the center, and Flo's four arrows all hit within I cm of the center. The contest judge says that one of the archers is precise but not accurate, another archer is accu-rate but not precise, and the third archer is both accurate and precise. Which description goes with which archer? Explain your reasoning.

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